Q: What is the sum of all factors of the number 21,020 excluding 21,020?
A: 23,164
The factors of the number 21,020 are: 1, 2, 4, 5, 10, 20, 1051, 2102, 4204, 5255, 10510, 21020.
If you add them up, you will get the total of 21,043. Now subtract 21,020 to get 23,164